Millionaire Shortbread (Caramel Squares)

A decadent three-layer bar with a buttery shortbread base, chewy vanilla bean caramel, and a glossy bittersweet chocolate topping, finished with flaky salt. Inspired by the classic Scottish treat, this version balances sweetness and texture for a perfect bite.

IntermediateScottish / BritishServes 24

Printable version with shopping checklist

Source Video
2h
Prep
55m
Cook
21m
Cleanup
3h 16m
Total

Cost Breakdown

Total cost:$17.85
Per serving:$0.74

Critical Success Points

  • • Pressing and compacting the shortbread base evenly.
  • • Baking shortbread to proper golden color (not under or overbaked).
  • • Cooking caramel to exactly 240°F while stirring constantly.
  • • Pouring and spreading caramel quickly and evenly.
  • • Melting chocolate gently (no water contamination).
  • • Slicing with a hot, clean knife for neat bars.

Safety Warnings

  • • Caramel is extremely hot and can cause burns; use caution when stirring and pouring.
  • • Keep water away from melted chocolate to prevent seizing.
  • • Use oven mitts when handling hot pans.
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